Sheet-metal rod or shaft.



T, E. MURRAY. SHEET/METAL ROD 0R SHAFT.

APPLIICATION men use. 14. 1916.

1,223,096. v V Patented Apr. 17, 1917.

VIII/It WWI r i anpgmro'c 86H 4%74444 a are incontact the ad acent ring. In constructing this tively, o,

Eeroduce electrica.

tween theedge's of the walls of ring B an the face of ring B.

y connecting the circuit ter- UNITED STATES PATENT OFFICE.

moms n. Manner, or new Your; 1:. Y1

SHEET-METAL B01) 03 SHAF'J Specification ar s was. Patented Apr. n, 1917.

Application filed December 14, 1916. Serial 1! J. 136,857.

'To all'whom it may concern:

Be it known that I, TnomAs E. MURRAY, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented a certain new and useful Improvement in Sheet -Metal Rods or Shafts, of which the following is a specification.

The invention is a rod or shaft built up of successive sections of struck up sheet metal united by electrically welded joints.

The object is to produce a very light and strong rod or shaft which may be used without machining, for any purpose for which rods or shafts otherwise constructed may be emlployed. g

the accompanying drawings- Figure 1' representsmy rodor shaft in 4 longitudinal section. Fig. 2 shows a crank,

the shaft and pin of which are constructed in accordance withmy invention;

Similar letters of reference indicate like P arts. The-shaft A is formed of a series of channeled rings placed 'insuccession. As shown in Fig. 1, the of the wall of one rm shaft, I first'place two'rings, as B, B, together; and ',nnect to said rings, respeccurrent. y welded joints at-E, F

I may then add a third ring B", and

minals to saidlring and'to ring-B, I make welded joints between ring Bi nd i gy at G,

.the rings 9 claim:

Wlth the flat annular face D from any suitable In this way, I

H. In this way, I continue adding and electrically welding them in place electrically velded to crank arms K, L at,

M, N, O, P.

Instead oi placing the rings with the edges of one ring against the face ofthe next ring, as shown in Fig. 1, I may arrange in pairs, with their faces in contact and electrically welded, as shown at-Q, in Fig 2 shaft of uniform diameter of channeled rings of of like diameter 1. A rod or formed of a plurality struck up sheet metal and placed successively cally welded surfaces.

2. A rod on shaft. as in claim 1, in comand united by electriare A shaft bination with a ring at the end of saidshaft havin its 0 iter wall of a diameter greater than t at' of its inner wall.

i In testimony whereof I' have aflixed my signature in presence of two witnesses.

THOMAS E. MUBRAY.

Witnesses:

Gammon T. Poms, my r. mama. 

